Tobacco-leaf-booking drum



July 10, 1923-.

3,461,322 G. H. JACKSON TOBACCO LEAF BOOKING DRUM 1 Filed March 3. 1921 Patented July 10, 1923.

, HUNITEDYsTAT ES PATENT caries.

GRAHAllI HUJACKSON, or NEWARK, nnw

MACHINE COMPANY, OF NEW YORK,

JERSEY, ASSIGNOR- TO UNIVERSAL TOBACCO N. Y., A CORPORATION OF NEW YORK.

TOBAGCO-LEAF-BOOKING DRUM.

Application fi1ed;March 3, 1921. Serial No. 4423,5428.

To all whom it may concern:

Be it known'that I, GRAHAM H. JACKSON, a citizen of the United States, residing at Newark, county of Essex, and State of New Jersey, have invented certain new and useful Improvements in Tobacco-Leaf-Bookmg Drums, fully described and represented in the following specification and the accompanying drawings, forming a part of the same. q t

This invention relates to certain improvements in tobacco leaf booking machines of that class in which the tobacco leaves have their stems stripped, crushed or otherwise treated and the treated leaves formed 1nto books. 1 e

In acopending application Serial No 449,549 I have disclosed a tobacco leaf treating machine employing a booking belt and booking drum so formed and arranged that one of these parts will readily yield or move away from the other as the leaves are 3 added andfthe thickness of the book in creases so that the leaves will not be so matted or pressed together as to render their separation difficult and cause liability of injury to the leaves as they are separated.

. In the specific structure shownin such application, the belt is formed with a book'rec-eiving portion of rubber which Wlll readily yield to give a light packing of the leaves into the book, so that they will not become matted together to an undesirable degree, and such construction has worked well in practice. It is desirable in some circumstances, however,.to form the drum with a resilient or flexible book forming surface which will yield as the book increases in size and will provide .a light packing for a book so that matting of the leaves to an undesirable extent is prevented, and it'is the especial object of the present inventlon to provide such improved booking roll or drum.

A further object of the invention is to produce such a drum of simple form and durable construction, and in which the booking surface acts tosome extent to adjust itself as the book increases in thickness. With these and other objects not specifically referred to, the invention consists in certain novel parts and combinations which will be described inv connection with the accompanying drawings and then pointed out in the claims hereunto annexed.

In the drawings Figure 1 is a vertical cross sectional view of so much of a tobacco leaf booking machine as is necessary for an understanding of the invention showing one form of the improved drum.

Figure 2 is a detail side elevation of the drum, the belt being shown in section.

Figure 8 is a detail sectional view taken on line 3-8 of Fig. 1.

Figure 4 is a partially broken end view showing a modified form of drum; and

Figure 5 isa detail sectional view taken on the line 5-5 of ig. 1.

Referring now to these drawings, A is one of the side frames of the machine which may be of any usual construction, B (l indicate a pair of crushing rolls to which the tobacco is fed over a feed board D by which the stem is crushed or broken so as to be approximately the same thickness as the rest of the leaf. G is the breaking belt which passes over a roll 1 located adjacent the crushing rolls and a roll 2, passing to and around the booking roll or drum F and then over rolls 3, 4 carried in a frame 5 supported by arms 6, 7 pivoted at 8 and 9 in the frame of themachine. From the rolls 4 the belt passes over a tension roll 10 and a guide roll '11 back to the roll 1. Tension may be put on the roll 10 by means of an arm 12 pivoted at 13 in the frame of the machine, this arm being held under tension by a spring 14 secured at one end to the arm 12 and at the other end to a standard 15 rising from the machine frame.

In accordance with the invention there is provided a booking roll or drum having a leaf receiving surface which is flexible or resilient so that as the book of leaves in creases in thickness during the booking operation this surface will yield to compensate for the increase in size of the book, the booking belt and belt adjustment remaining the same. While the specific construction of such roll may be varied, in the particular construction illustrated, the booking drum is in the form of a pair of spaced drums or heads 16, 17 fast on a roll shaft 18. Located between these heads and carried thereby is a flexible or resilient leaf receiving member which is as shown in Figs. 1 to 3, in the form of a belt or sheet 19of rubber, rubber fabric or other flexible or resilient material. This rubber fabric is supported by the heads 16, 17 as shownin Figs. 1 to 3 by a bead 20 taking into grooves 21 formed in the heads, this bead being further strengthened, if desired, by wires or rods 22, it being understood that the beads extend circumferentially around the heads to form the circular roll or drum.

With this construction, as the leaves are accumulated to form the book the booking surface yields opening inwardly between the heads, as indicated in dottedlines in Fig. 3, this yielding relieving the tension of the booking belt on the leaves and preventing them from matting; The necessary driving tension of the belt is thus transferred to the edges on the solid part of the drum andinjury due to a-slip of the belt avoided, which is liable where it takes place, to injure the book. The belt is adjusted to allow for the increase of thickness of the book and abook' of any desired number of leaves may be produced.

In Figs; 4: and 5 is shown a modified form of flexible booking surface, which under certain circumstancesmay be employed; Inthe construction there illustrated, there are provided pair of'spaced heads 23, 2f between which are sprung lei rble metal plat-es hay-- ing a book receiving surfaee and legs 26 having inturned portions 27 which may be sprung into sockets 28 formed in the heads These metal plates follow each other closely adjacent peripherally and are, as shown, ranged at an angle to the periphery so that they may be sorung inwardly by the increasing thickness of the book as it is formed and compensate for the thickness of the book without requiring adJu'stmeiit of the booking belt;

lVliile the invention has been shown and described in its preferred forms, it will be understood that other forms of drum having a resilient and flexible book receiving surface can be devised, and it is understood that such forms are within; the invention, and that the intention is'not limited to the precise forms illustrated.

What I claim is:

1. In a tobacco leaf booking machine the combination of a booking belt and a booking drum about which the belt passes, said drum having a leaf receiving surface supported to yield or move away from the belt as the thickness of the book increases.

9. In a tobacco leaf booking machine the combination of a bookingjbelt and a booking drum about which the belt passes, said drum having a leaf receiving surface of a yielding or resilient material supportedby spaced supports so as to yield between the supports" away from the belt as the thickness of the book increases In a tobacco leaf booking machine thecombination of a. booking belt and shocking drumabout which the belt passes, said drum liming a. leaf receiving surface comprising a continuous Web of yielding or resilient material supportedby spaced supports so as to yield between the supports away from the belt as the thickness of the book increases,

at, Ina tobacco leaf boolring machine the 1 d hereunto set In 7 12111 i GRAHAM JACKSON. 

